As Cypress Semi (CY) digests Ramtron, developer of a memory technology (FRAM) long promised to be huge some day, its core SRAM business could face a threat from MRAM, another memory solution that for years has been long on hype and short on actual use. Toshiba (TOSBF.PK) says it has developed an MRAM prototype that consumes far less power than SRAM thanks to lower current leakage, making it ideal for mobile devices. Historically, MRAM has been more power-hungry than SRAM.